Kauai, Hawaii

4.While the rest of Hawaii may have been overrun with soul-destroying developers, volcanic Kauai is so lightly developed that it has been dubbed The Garden Island -- and that’s not just brochure speak. Fortunately, the state of Hawaii has declared over half of Kauai parkland, meaning that developers will never get their grubby little paws on it. Most of the island’s interior is roadless, with thick forests, cascading waterfalls and the only navigable rivers in Hawaii.

Be sure to visit the famed 3,567-foot-deep Waimea Canyon, as well as the untouched Na Pali Coastline. With 43 white-sand beaches -- more beach per mile than any of the other islands -- it’s not hard to see why Kauai attracts surfers, backpackers and hippies from around the globe. For low-key luxury, stay at the Hanalei Bay Resort.